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Publication numberUS67614 A
Publication typeGrant
Publication dateAug 6, 1867
Publication numberUS 67614 A, US 67614A, US-A-67614, US67614 A, US67614A
InventorsJames Trees
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
James trees
US 67614 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)


No. 67,614. Patented Aug. 6, 1867.

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Letters Patent No. 67,614. dated August 6, 1867.


Be it known that I, JAMES TREES, of Greensburg, in the county of Westmoreland, and State of Pennsylvania, have invented a certain new and useful improvement in Pipes .for Conveying Water and other fluids, of which the.following is a full, clear, and exact description, reference being had to the accompanying drawings, which make part of this specification, in which- Figure 1 represents a longitudinal central section through a pipe embracing my improvement.

Figure 2 represents a transverse section through the some at the line :r: not fig. 1; and

Figure 3 represents a similar section, showing a modification of my invention.

It is the object of my invention to increase the quantity of water delivered in a given time through a pipe of given area; and to this end my improvement consists in constructing the pipes in the form of frusta of cones placed base to base, and supporting concentrically therein a series of cones, lilicwiseplaced base to base, as hereinafter described.

I make the section D of the pipe in the form of the frustum of a cone, with an inclination or taper of say five degrees. A cone, F, of similar form, but of smaller diameter, is placed within the pipe, being supported concentrically therein by braces b. I then place a shorter and more abrupt cone F with its base against that ofthe cone F, and in the same axial plane. A frustum, C, of a cone having an inclination parallel to that of cone F is placed over it, and connected at its larger end to the main pipe D. The cone G is to be connected to the smaller end of a section similar to the long one, D, when the point of cone I" will shut against that of a cone corresponding to the short one F.

My improved pipe, it will thus be seen, consists of a series of frusta of cones placed base to base, and enclosing a series of corresponding cones similarly arranged in the axis of the pipe, so as to leave an annular water-way of uniform area but of varying inclination. The form chosen for. the cones'is that demonstrated to ofi'er the least resistance tovthepassa'ge of a solid through fluids, and of course the same .form would offer the least possible resistance to the flow of a fluid around it. The fluid first impinges against the short cones, and then flows down the sides of the long ones.

It is a well-known fact that a fluid will escape more rapidly through una jutage or discharge pipe which flares from its entrance to its exitvthan through one having a discharge-crifice of equal area but with a pipe having parallel sides. The theory of my invention is that the lines of pressure of the fluid are parallel to the exterior of the pipe, and I believe that by using an internal cone parallel or concentric with the pipe, and thus keeping the pressure in this direction, I obtain an increased flow of water. But the pipe would soon become too large for practical use did it continue to expand or flare. The necessity of providing against this diificulty led me to the discovery that by varying the inclination or direction of the water-way, without diminishing the area, the flow would not be sensibly obstructed.

It is obvious that the pipes may be united in any suitable manner, and that the sections may either he formed separately or together, but in the latter case the section'C had better be cast on the smallend of the long section D, 'for convenience in removing or inserting the cones. The cones may he supported centrally by knife-edge braces 11, as shown in the drawings, and may also be made to dove-tail into'each 'other at their points, in which case the number of braces may be diminished. .The braces may either be connected to the cone and removable with it, as in' fig. 2, or to the pipe, as in fig. 3, but I prefer'to unite them to the cone, as they can he removed with it, and will hold the cone,s ecurely in place whenever inserted in the pipe. .The central cones may be either solid or hollow. I I

What I claim as my invention, andv desire to secure by Letters Patent, is-

I. A pipe composed of trusts. of cones of alternately varying inclination, arranged base to base, substantially in the manner and for the purpose described.

2. The combination, substantially in the manuerdescribed, with a pipe composed of frusta of cones arranged base to base, of a corresponding series of cones arranged concentrically within the pipe, for the purpose set forth- In testimony whereof I have hereunto subscribed my name.


J. I. Person, WM. D. Bnnnwm;

Referenced by
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US4576204 *Mar 9, 1984Mar 18, 1986Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of National DefenceLaminar flow element
US4886086 *Dec 23, 1987Dec 12, 1989Graco, Inc.Non-degrading pressure regulator
US5449350 *Jul 19, 1994Sep 12, 1995Abbott LaboratoriesIntravenous fluid administration device containing anti-squirting orifice flow control
US9016928 *Dec 28, 2012Apr 28, 2015The United States Of America As Represented By The Administrator Of The National Aeronautics And Space AdministrationEddy current minimizing flow plug for use in flow conditioning and flow metering
US9046115 *Nov 9, 2012Jun 2, 2015The United States Of America As Represented By The Administrator Of The National Aeronautics And Space AdministrationEddy current minimizing flow plug for use in flow conditioning and flow metering
Cooperative ClassificationF15D1/04